I'm having a slight issue with idle. Tune is perfect. Car runs perfect. Everything acts as it should.....until I get a random hanging idle %. Let me elaborate.
After driving for a while, things heat up. The tolerances (i'm guessing) get looser on my throttle body. I'm not going to say what name brand it is for sake of not throwing any company under the bus, but its a $400 one I bought brand new, not a china one. So when things heat up, if I snap the throttle then i assume because of the slack it will return back to less than 0% and remembers that position. when things level out it now says .4%
do it again a couple times and it ends up reading .8%
thats when my surging starts. If i could raise whatever setting it is affecting this at .8% then it should stop my surging. I just dont know what that is.
I can watch all of this play out on my scanner. Throttle body has a good bit of slack. My china throttle body i have sitting on the shelf has zero slack. I've put a new tps about 3 or 4 times.
2004 gto LS1